Glowing Sharks

Lions and tigers and glowing sharks, oh my? This is Sandra Tsing Loh with the Loh Down on Science, saying: We’re gonna need a bigger boat! Lots of ocean-dwelling animals glow. Biofluorescence allows a marine animal–say, a shark–to take in light and convert it to a different color. What color?

I See UVC

Can cameras “see” invisible light? This is Sandra Tsing Loh with The Loh Down on Science. My sunscreen protects against U-V-A and U-V-B, but what about U-V-C!?!?!? Yes, there is a THIRD type of U-V light! Fortunately we are protected from it by the earth’s ozone. UNfortunately, there are weak

Microscopic Journey

Adventure thru innerspace! And beyond! This is Sandra Tsing Loh with the Loh Down on Science. The Disneyland Tomorrowland ride let visitors travel “thru inner-space”. Riders were shrunk down to smaller than an atom, beyond the limit of microscope technology. Like in that sci-fi movie “Fantastic Voyage!” Cool, right? Current

50 Shades of Blue

Wearing one red sock and one blue sock today? That’s what you get for dressing in the dark! Sort of. This is Sandra Tsing Loh with The Loh Down on Science. Think of vision as a series of brain cells turning each other on. Not so much romantically, as literally.

Password Protection

“Totally random!” It isn’t just Valley speak! This is Sandra Tsing Loh with the Loh Down on Science. Still using your cat’s birthday for your bank password? Me too! But random number generators are key to protecting websites and keeping sensitive information safe. Unfortunately, computer codes that produce random numbers

3-D Gets Real

Free the man in the phone! This is Sandra Tsing Loh with the Loh Down on Science. Imagine you’re FaceTiming with your dad. But instead of seeing his face trapped in a two-D screen, his image is free-floating in the air – in three-D! Sounds like a sci-fi movie, right?

Flash Flu Fix

Travelling on an airplane this flu season? This is Sandra Tsing Loh with the Loh Down on Science. AH-CHOO! Scootch scootch! Between the close quarters and recycled air, there’s a good chance you’ll catch something. You can try to protect yourself by wearing a mask or popping vitamin C. But

50 Shades of Yellow

A rose is a rose is a rose, right? This is Sandra Tsing Loh with the Loh Down on Science, saying: Except when it’s yellow! Roses aside, University of York researchers have discovered something very strange about that color. People’s perception of it changes from winter to summer! As part

Not Fade Away

Let’s talk turkey – about laundry? This is Sandra Tsing Loh with the Loh Down on Science. Our clothes are colored with dyes that work by absorbing light. That is, they soak UP certain colors, and reflect BACK the ones we see. But sadly, pigments aren’t permanent. After a few